Photographic camera.



' F. H. SANDERSON..

PHOTOGRAPHIC CAMERA.

(Application filed Oct. 8, 1901.] (No Model.) 3 Sh Patented Feb; 25,I902.

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No. 694,080. Patented m. 25, I902.

r. u. SANDEBSON. PHOTOGRAPHIG CAMERA.

(Am)! t n fil d O t B 1901) 3 Sheets-Shot 2.

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No. 694,080. Patented'Feb. 25, I902.

r. H. S ANDEBSON. PHOTOGRAPH") CAMERA.

7 (Application flied Out. a, 1901. (No Model.) I v a Sheets$heet a.

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UNITE TATES ATENT FFIcE.

FREDERICK H. SANDERSON, OF CAMBRIDGE, ENGLAND.

PHOTOGRAPHIC CAMERA.

SPECIFICATION forming part of Letters Patent No. 694,080, dated February25, 1902.

Application filed October 8,1901. Serial No. 77,945. (No model.)

To aZZ whom it may concern:

Be it known that I, FREDERICK HERBERT SANDERSON, a subject of the Kingof Great Britain, residing at 17 Chesterton road, Cambridge, in thecounty of'Oambridge, England, have invented certain new and usefulImprovements in Photographic Cameras, of which the following is aspecification.

My invention relates to improvements in photographic cameras, and hasspecial reference to a former invention for which I was granted LettersPatent, January 10, 1895, No. 613, in Great Britain, and November 3,1896, No. 570,774, in the United States of America. The object of theaforesaid invention was to provide a universal movement to the front ofa camera, particulars of whichare described and fully set forth in thespecifications of the before-mentioned patents.

The object of my present invention is to construct a camera-front forcarrying thelens or objective, having the combined advantages of, first,a camera-front whichis rigidly fixed second, a camera-front having avertical rise and fall; third, a camera-front having a vertical rise andfall with optional swinging movement, and, fourth, a camera-front havinga universal rising, falling, swinging, and backward and forward movementas provided by my former patents referred to herein. To this end I soarrange the swinging slotted arms that they can be locked together in avertical position and converted into fixed upright standards whenrequired. -In these upright standards the camera-front can be fixed atthe desired height, being raisedor lowered in a vertical plane.

In the accompanying drawings I have shown as much of a camera as willserve to illustrate my present invention.

Figure l is a side elevation. Fig. 2 is a front view. Figs. 3 and 4: areboth side elevations showing the camera-front in different positions,and Fig. 5 is also a side elevation of the camerain a position ofextreme extension.

at is the camera-front, supporting the lens in any convenient manner.

I) is the bellows-body to which the front is secured. a

c is a slide capable of moving forward or backward in guides on thebase-board d.

e f are slotted arms, of which there are two pairs, one on each side ofthe front a, pivoted to the slide 0 at g and h. V The arm f is crankedin a backward direction, so as to bring its slot into parallelism withthat of the arm e when fixedin the upright position shown .in Figs. 1 to4 of the drawings.

1' 1} are screw-studs passing through the aforesaid slots and fixed tothe frame of the front a, on either side thereof, which frame bythe aidof nuts they serve to fix in any desired position. V

The arms efare fixed in their upright position by securing themtogether, which can be done by means of spring-catchesjj, which dropinto holes in the arms efwhen the latter are in line, as is the casewhen they are in the upright position. Z indicates small plates pivotedto the arms f, by means of which the catches j can be withdrawn from theholes 7c and the arms 6 f released when it is desired to swing them,say, into the position shown at Fig. 5. When the arms efare locked, thefrontacan move up and down, and it can also be tippedas, for instance,to the position shown at Fig. 4. To insure, however, the front remainingin a vertical plane when raised or lowered to any position in theslotted arms e f, bolts m on may be provided, which engage with theslots of the arms efand cooperate with the studs 4. to maintain thefront a in a Vertical plane as long asrthe engagement continues and thearms 6 f remain upright. The bolts on are spring-pressed outwardly, butare provided with handles a, by which they may be withdrawn and by whichthey may be held in the withdrawn position by engagement with theangular slots 0 in the front frame. When the bolts m are withdrawn andthe arms e f are released, the freedom of the latter is controlled onlyby the screw-studs 'i, which support the can1era-front in the slots. Itwill be seen, therefore, that there may be, at the discretion of theoperator, either complete freedom of movement of the parts or apartially restricted movement, as when the arms 6 f are locked togetherin a vertical position and the front is not bolted to the arms 6 f, or astill more restricted movement, as when the front is bolted to the arms6 f and the arms 6 secured with the arms f in the upright position aboveindicated. In the latter case the camera-front must always remainparallel to the focal plane,notwithstanding the elevation or depressionof the same within its range of traverse in a vertical direction or thetraverse of the slide 0 in a horizontal direction.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination with a can1era front of swinging supporting-arms,connected thereto by screws and nuts and arranged to come intoparallelism when in their upright position, means for fixing the saidarms in parallelism and means for retaining the front in line with itssupporting-arms without interfering with its rise and fall vertically,substantially as set forth.

2. The combination with a camera-front and a supporting-base therefor,of a slide fitted to said base, two pairs of slotted swinging arms onepair on each side of the front pivoted to the slide one behind theother,

studs one on each side of the front passing through the slots in bothsaid swinging arms on the corresponding side, and means for securingsaid arms with the slots in an upright position, substantially as hereindescribed.

8. The combination with a camera-front, of slotted swingingsupporting-arms two on each side having their slots respectively sodirectslotted swinging supporting-arms two on each side having theirslots respectively so directed that the slots of the two may be broughtparallel with each other in an upright position, screw-studs one on eachside of the front passing through the slots on both arms on thecorresponding side, and a spring-catch for securing together the twoarms on either side with their slots parallel with each other in anupright position, substantially as herein described.

In testimony whereof I have signed my name to this specification in thepresence of \Vitncsses:

L. N. REDDIE, \VALTER J. SKERTEN.

